On 2/12/26 22:42, [email protected] wrote:
Background: I switched to T-Mobile for my Internet connection (via 5G)
and, as
far as speed and lack of interruptions, it works fine for me, but I
have a few
problems:
* I'm not asking about this, just noting it: The address of the
TMO-G4AR
device is 192.168.12.1 and cannot be changed (and certainly not from
the .12
"subnet" (right word?)), which meant I had to reconfigure all my
devices, some
of which I forgot how to do.:-
Why, were you having IP conflict/why did you have to change the IPv4
addressing of your network?
( (Ok now ;-)
* The TMO-G4AR device is not a router, but it does NAT (I think it
does
DHCP also, but I'm not using that at all, I use static (IPv4)
addresses), does
not do routing, and cannot be switched to bridge mode.
How did you determine, the service(s) that are running on your ISP
"router"?
Trust me on those things that the TMO gateway device cannot do. There
are
some ways to get a different device that works on the T-Mobile network
which
can do (some of?) those things, but requires switching to a "business
license"
at a higher cost and paying for thruput.
Can't you simply use your router/modem?
I had my devices working for a while (a few months) but had no
occasion to do
anything like ssh between them. Today I had a need and realized that
I cannot
ssh (or ping) between them because the TMO does not do routing.
YOu are using static addressing, so you should be able to talk to one
another.
The question(s): I have a Ubiquiti Edge Router X which I used with my
previous
cable based ISP. I'd like to add it back to the LAN to enable
communications
between devices, but because the TMO device does NAT and so would the
Edge
Router, I'll have a double NAT setup -- I'm worried about that
especially for
my VOIP communications.
Just try with double natting for now and see how it goes..
I'm thinking about 2 (or maybe 3) solutions.
1. The simplest for me to explain is to put a 2nd Ethernet interface
in each
of my computers and then run one Ethernet interface (through a switch)
to the
TMO and the other Ethernet interface (possibly through another switch,
depending on where I locate the router) to the router. I'm guessing
that
could be made to work, but that it would require some "gymnastics" to
routing
tables in each computer (or something along those lines).
An option but why..
2. The slightly more complicated one for me to explain is to somehow
stick
with one Ethernet interface per computer, run each to a switch, and
have those
switches interface to both the TMO and the Edge Router. Again, I'm
guessing
this could be made to work, and would require "gymnastics" of some sort.
Like above, I would say router from ISP Edge Router, switches and than
your devices.
3. Another possibility that I'm not real comfortable with, but maybe
could
work: The TMO-G4AR has two RJ-45 connectors that can be used to
connect to
"network segments".
How do you know that?
You don't know the services running on your ISP router..
I could set up the Ubiquiti to handle communications on
my LAN and also connect to one of those TMO connectors to provide
access to
the Internet (for the LAN), and use the other TMO connector to connect my
(hardware VOIP devices) without a router, thus no double NATing for
those.
I do not trust something from my ISP, connect your Edge Router to your
ISP router and disable natting on that Edge Router.
This assumes that you can set static routes in the ISP router.
I do also use google voice VOIP from some of my computers, and that
would be
subject to double NATing.
I don't play games or such, I do have one (smart) TV connected to the TMO
(currently via the LAN) that I watch sometimes in the evening. Thus,
except
for the VOIP lines, I'm not sure I have much to worry about with double
NATing.
At the moment, I'm throwing these possibilities out for any comments
you have
to offer, and to help me pick the path going forward.
Oh, one other thought: in my readng on the Internet, at least one person
suggested that switching to IPv6 could resolve my (or somebody's ;-)
problems
-- if that is a solution, I might consider it. (IPv6 is Greek to me,
and I've
resisted it up-to-now because I feel somewhat secure behind NAT
NAT simply ensures that private IPv4 addresses are not routed on the
internet, that has nothing to do with security!
(and because
it is Greek to me).) (Oh, related to that, I have no idea what the
TMO device
would do with IPv6.)
YOu are already lost with IPv4, stick with it! :)
Once I pick the path, I'll almost surely ask for more help for things
like
setting up the routing tables appropriately.
I would like to point out that this has nothing to do with Debian.
First you need to understand what capabilities the ISP thing provided by
your ISP does or see if you can have your own cable modem.
Does the box that you have now from your ISP has build-in wireless?
If you can not have your own cable modem or set that ISP thing in bridge
mode, look if you have a DMZ capability and add the Edge Router in that
DMZ.
